- A
Deploy a second ASCS instance in another AZ and use an EC2 instance running NFS server with an EBS volume
Why wrong: This adds complexity and a single point of failure on the NFS server.
- B
Use an Amazon EBS volume attached to the ASCS instance and replicate it to another Availability Zone using EBS Snapshots
Why wrong: EBS volumes cannot be attached to multiple instances; snapshots are not real-time.
- C
Use Amazon S3 and mount it using s3fs-fuse for the shared file system
Why wrong: S3 is not POSIX-compliant and s3fs-fuse is not recommended for SAP.
- D
Use Amazon EFS for /sapmnt and /usr/sap/trans, and configure a Pacemaker cluster across two Availability Zones
EFS is a managed NFS file system that is highly available and integrates with Pacemaker for automatic failover.
PAS-C01 Design of SAP Workloads on AWS Practice Question
This PAS-C01 practice question tests your understanding of design of sap workloads on aws. The scenario asks you to isolate a root cause — eliminate options that address a different problem before choosing. After answering, compare your reasoning against the explanation and wrong-answer breakdown below. Once you have made your selection, read the full explanation to reinforce the concept and understand why each distractor is designed to mislead on exam day.
An SAP system on AWS has an SAP Central Services (ASCS) instance running on an EC2 instance. The solution must ensure high availability for the ASCS in case of an EC2 failure. The ASCS uses a shared file system for the /sapmnt and /usr/sap/trans directories. Which architecture meets the high availability requirement with the least administrative overhead?
Clue words in this question
Noticing these words before you look at the options changes how you read each choice.
Clue:
"least"Why it matters: You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
Use Amazon EFS for /sapmnt and /usr/sap/trans, and configure a Pacemaker cluster across two Availability Zones
Option A is correct because a Pacemaker cluster with Amazon EFS provides a fully managed NFS file system that is highly available and eliminates the need for a separate shared storage cluster. Option B is wrong because EBS fails over with the instance but is not shared. Option C is wrong because S3 is not a POSIX-compliant file system. Option D is wrong because it adds complexity with an additional EC2 instance for NFS.
Key principle: NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✗
Deploy a second ASCS instance in another AZ and use an EC2 instance running NFS server with an EBS volume
Why it's wrong here
This adds complexity and a single point of failure on the NFS server.
- ✗
Use an Amazon EBS volume attached to the ASCS instance and replicate it to another Availability Zone using EBS Snapshots
Why it's wrong here
EBS volumes cannot be attached to multiple instances; snapshots are not real-time.
- ✗
Use Amazon S3 and mount it using s3fs-fuse for the shared file system
Why it's wrong here
S3 is not POSIX-compliant and s3fs-fuse is not recommended for SAP.
- ✓
Use Amazon EFS for /sapmnt and /usr/sap/trans, and configure a Pacemaker cluster across two Availability Zones
Why this is correct
EFS is a managed NFS file system that is highly available and integrates with Pacemaker for automatic failover.
Clue confirmation
The clue word "least" in the question point toward this answer.
Related concept
Static NAT maps one inside address to one outside address.
Common exam traps
Common exam trap: NAT rules depend on direction and matching traffic
NAT is not only about the public address. The inside/outside interface roles and the ACL or rule that matches traffic are just as important.
Detailed technical explanation
How to think about this question
NAT questions usually test address translation, overload/PAT behaviour, static mappings and whether the right traffic is being translated. Read the interface direction and address terms carefully.
KKey Concepts to Remember
- Static NAT maps one inside address to one outside address.
- PAT allows many inside hosts to share one public address using ports.
- Inside local and inside global describe the private and translated addresses.
- NAT ACLs identify traffic for translation, not always security filtering.
TExam Day Tips
- Identify inside and outside interfaces first.
- Check whether the scenario needs static NAT, dynamic NAT or PAT.
- Do not confuse NAT matching ACLs with normal packet-filtering intent.
Key takeaway
NAT direction and interface roles matter as much as the IP address mapping. Inside/outside designation controls which traffic is translated.
Real-world example
How this comes up in practice
A media company stores terabytes of video archives that are accessed once a year for audit purposes. Moving these objects to a cold storage tier (Azure Archive, S3 Glacier, or Google Nearline) costs a fraction of hot storage. Questions like this test whether you understand storage tiers, access frequency tradeoffs, and retrieval latency requirements.
What to study next
Got this wrong? Here's your next step.
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PAS-C01 NAT questions on configuration and troubleshooting.
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FAQ
Questions learners often ask
What does this PAS-C01 question test?
Design of SAP Workloads on AWS — This question tests Design of SAP Workloads on AWS — Static NAT maps one inside address to one outside address..
What is the correct answer to this question?
The correct answer is: Use Amazon EFS for /sapmnt and /usr/sap/trans, and configure a Pacemaker cluster across two Availability Zones — Option A is correct because a Pacemaker cluster with Amazon EFS provides a fully managed NFS file system that is highly available and eliminates the need for a separate shared storage cluster. Option B is wrong because EBS fails over with the instance but is not shared. Option C is wrong because S3 is not a POSIX-compliant file system. Option D is wrong because it adds complexity with an additional EC2 instance for NFS.
What should I do if I get this PAS-C01 question wrong?
Review the four NAT address types (inside local, inside global, outside local, outside global), PAT port overload, and static vs dynamic NAT use cases. Then practise related PAS-C01 NAT questions on configuration and troubleshooting.
Are there clue words in this question I should notice?
Yes — watch for: "least". You want the option with minimum overhead, fewest steps, or lowest impact — not the most feature-rich or comprehensive answer.
What is the key concept behind this question?
Static NAT maps one inside address to one outside address.
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Last reviewed: Jun 20, 2026
This PAS-C01 practice question is part of Courseiva's free Amazon Web Services certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the PAS-C01 exam.
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